CN108252327A - The construction method of Large Underground high voltage substation - Google Patents
The construction method of Large Underground high voltage substation Download PDFInfo
- Publication number
- CN108252327A CN108252327A CN201711481531.7A CN201711481531A CN108252327A CN 108252327 A CN108252327 A CN 108252327A CN 201711481531 A CN201711481531 A CN 201711481531A CN 108252327 A CN108252327 A CN 108252327A
- Authority
- CN
- China
- Prior art keywords
- transformer station
- construction
- station box
- construction method
- foundation pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
A kind of construction method of Large Underground high voltage substation, it is related to project of transmitting and converting electricity design and building technology field, it is more for earth's surface surrounding building, and high voltage substation under construction ground in the stratum with deep chiltern soil layer, existing method causes diaphram wall seam crossing easily to seep water, structurally waterproof difficulty of construction is big and influences the problem of big, construction method to surrounding enviroment：First, by the downward milling slot of earth's surface；2nd, it constructs diaphram wall, is reinforced in the seam crossing construction cement mixing method of diaphram wall, the building enclosure as foundation pit in slot；3rd, excavation pit sets up steel structure frame in foundation pit and transformer station box is made in casting concrete to designed elevation；4th, electric appliance will be become to be mounted in transformer station box, transformer station box is closed by precast concrete cover and carries out water proof anti-seepage construction.
Description
Technical field
The present invention relates to project of transmitting and converting electricity designs and building technology field, more particularly to a kind of Large Underground high voltage substation
Construction method.
Background technology
Underground high-voltage construction of transformer substation is a underground concealed engineering, and the merging of the equipment such as transformer and high-low pressure cabinet is complete buried
In babinet and underground is embedded to, can ensure the noiseless interference in ground, but also has many advantages, such as to save land used, beautify the environment.
However, in some bad grounds, the construction of underground high-voltage substation especially has then there is many non-intellectuals
There is the stratum of deep chiltern soil layer, the bad geological phenomenons such as quicksand easily occur under river channels for chiltern soil layer good water permeability；
Carry out deep foundation pit construction in above-mentioned deep chiltern soil layer, there are problems that it is many be unfavorable for construction, such as diaphram wall seam
Place's easily infiltration, underground water drainage can not lead to excavation of foundation pit there are many security risks and structurally waterproof difficulty of construction in time
Structural wall, plate is caused percolating water etc. occur greatly；More seriously, it is above-mentioned as underground high-voltage substation is located in bustling business district
Influence of the deep foundation pit construction to surrounding enviroment is very big, and base pit engineering is caused to can not be successfully construction.
Invention content
It is more for earth's surface surrounding building, and high voltage substation under construction ground in the stratum with deep chiltern soil layer,
Existing construction method causes diaphram wall seam crossing easily to seep water, and structurally waterproof difficulty of construction is big and surrounding enviroment is influenced big
The problem of, the object of the present invention is to provide a kind of construction method of Large Underground high voltage substation, by diaphram wall
Seam crossing carry out water-stop curtain reinforcing, not only solve leakage problem, but also ensured the construction safety of foundation pit.
The technical solution adopted by the present invention to solve the technical problems is：The construction method of Large Underground high voltage substation,
Step is as follows：
First, according to the practical geological condition in construction project to be built place, by the downward milling slot of earth's surface；
2nd, it constructs in the slot dug in above-mentioned steps one diaphram wall, is applied in the seam crossing of the diaphram wall
Work cement mixing method is reinforced, the building enclosure as foundation pit；
3rd, the foundation pit is excavated to designed elevation, sets up steel structure frame in the foundation pit and casting concrete is made
Transformer station box；
4th, electric appliance will be become to be mounted in the transformer station box, the transformer station box is closed by precast concrete cover
And carry out water proof anti-seepage construction.
Preferably, in the step 4, before the precast concrete cover closes the transformer station box, along described
Transformer station box top surrounding arrangement water expandable waterstop, then the precast concrete cover is positioned over substation's case
The top of body.
Preferably, after the precast concrete cover is closed in the transformer station box top, first in the concrete
Twice of polyurethane water-proof paint is brushed, then lay one of modified asphalt waterproof coiled material on the face layer of earth mulch plate, finally, changed described
Pea gravel concreten protective layer is poured again on property asphalt water-proof coiled material.
Preferably, it in the step 1, grabs the mode that scouring machine and hydraulic pressure slotter be combined using hydraulic pressure and carries out grooving, it is right
The viscous soil horizon on the construction project to be built formation top grabs scouring machine with the hydraulic pressure and directly captures the soil body, described viscous to being located at
Sandy soil layer below property soil layer, with the hydraulic pressure slotter milling to slot bottom.
Preferably, there is upper and lower two rows of embedded bars in the step 3, in the box baseplate of the transformer station box,
And jacking is carried out using channel steel stent between upper and lower two rows of embedded bars；The side wall of the transformer station box by column and
Crossbeam forms steel structure frame and casting concrete is made, and the column and crossbeam are made of channel steel, and adjacent two described vertical
Column or crossbeam are connected by horizontal stay tension rib.
Preferably, the steel structure frame of the top surface arrangement of reinforcement reinforcing bar that the diaphram wall stretches out and the transformer station box welds
It is connected in one.
Preferably, in the step 3, when wait assembling reinforcement in the transformer station box poured, in the substation
The tunneling boring of babinet sets several temperature control points, several are set for monitoring concrete temperature in the range of each temperature control point
The temperature sensor of variation.
Preferably, in the step 2, the milling wheel of the hydraulic pressure slotter during cutting drilling, is placed in institute in the slot
State the mud of slot bottom described in the mud pumping in hydraulic pressure slotter, and the grout pipe line through the hydraulic pressure slotter is by institute
The mud pit for stating slurry transportation to ground carries out desanding processing, and treated the mud is back to described through the grout pipe line
In slot, the diaphram wall is formed after the mud hardening.
Preferably, it is equipped with self-circulating device in the mud pit.
Preferably, in the step 3, soundproof wall is additionally provided with close to the side of the above ground structure of the foundation pit.
Effect of the invention is that：The construction method of Large Underground high voltage substation of the present invention is for surrounding building
For construction site more and that there is deep chiltern soil layer；Trenching construction is carried out in proposed place using machinery, in slot
Building enclosure of the construction diaphram wall as foundation pit, and if being constructed using seam crossing of the MJS construction technologies in diaphram wall
Solid carbon dioxide soil mixing pile, it can avoid the seam crossing of diaphram wall from percolating water phenomenon occur, that is to say, that diaphram wall
Play the role of further foundation pit enclosure and sealing jointly with cement mixing method, can ensure the construction peace of follow-up foundation pit
Entirely；After excavation of foundation pit to designed elevation, set up steel structure frame in foundation pit and transformer station box is made in casting concrete, then
The equipment such as electric appliance will be become to be installed in the babinet, finally, transformer station box is closed by precast concrete cover and carried out waterproof and resist
Ooze construction.The construction method carries out water-stop curtain reinforcing by the seam crossing in diaphram wall, both solves leakage problem,
The construction safety of foundation pit has been ensured again so that construction is smooth.
Description of the drawings：
Fig. 1 is the flow chart of the construction method of the Large Underground high voltage substation of the present invention.
Specific embodiment
The construction method of Large Underground high voltage substation proposed by the present invention is made below in conjunction with the drawings and specific embodiments
It is further described.According to following explanation and claims, advantages and features of the invention will become apparent from.It below will be by
Cited embodiment combination attached drawing, the technology contents and feature that the present invention will be described in detail.Need in addition it illustrate, attached drawing is adopted
With very simplified form and using non-accurate ratio, only to convenience, the embodiment of the present invention is lucidly aided in illustrating
Purpose.For sake of convenience, described below " on ", " under " the upper and lower direction with attached drawing is consistent, but this can't be this hair
The limitation of bright technical solution.
The present embodiment is located in certain Large Underground high pressure of bustling business district to have deep chiltern soil layer in the stratum of place
For the construction of substation, report that construction project to be built place is shown in Table one from the distribution of strata of ground down according to geotechnical engineering investigation：
Table one
In construction project to be built place artesian water be mainly deep 7., 9. in layer preservation artesian water (the 8. layer viscous soil horizon
Missing, the 7. layer and the 9. layer artesian water be interconnected), the 7. layer be that 9. layer is this for the first artesian aquifer of this area, the
Second artesian aquifer in area；Have a direct impact to this engineering be 7. in layer preservation artesian water, the 7. layer artesian water
Head buried depth about 9.60m~10.19m, corresponding absolute altitude -6.02m~-6.58m, the amplitude of variation of artesian aquifer depth to water are general
In 3.0m~11.0m；Moreover, construction project to be built is located in bustling business district, foundation pit surrounding ground building is more, is applied to reduce foundation pit
Work to the adverse effects of surrounding enviroment, in work progress fire-fighting, noise reducing efforts have higher requirement.It is specifically described below
The construction method of the Large Underground high voltage substation of the present embodiment, step are as follows：
First, according to the practical geological condition in construction project to be built place, by the downward milling slot of earth's surface；
2nd, it constructs in the slot dug in step 1 diaphram wall, to ensure follow-up excavation safety, utilizes
MJS (Metro Jet System) construction technologies carry out water-stop curtain reinforcing, that is, soil cement of constructing in diaphram wall seam crossing
Mixing pile, with diaphram wall collectively as the building enclosure of foundation pit；With reference to site operation situation, first set 2 groups of test piles into
The test of row bearing capacity of pile foundation carries out the allotment optimization of slurries with reference to field geology feature so that as made from MJS construction technologies
Construction quality of the cement mixing pile in deep chiltern soil layer is preferably controlled, and diaphram wall seam crossing is avoided to ooze
Drainage；Above-mentioned MJS construction technologies be on the basis of conventional high-tension jet groutinl technique, employ unique antipriming pipe and
Device is caused in front end, realize and pressure monitoring in plasma discharge and ground is forced in hole, and is controlled in ground by adjusting plasma discharge amount is forced
Pressure, can be greatly reduced disturbance of the construction to surrounding enviroment, and also to further ensure pile straight for the reduction of pressure in ground
Diameter, and then ensure that construction effect；
3rd, foundation pit digging is deep to designed elevation；To ensure that foundation pit surrounding enviroment are unaffected, the support of the present embodiment foundation pit uses
5 concrete supports, the first floor set up arrangement and transport of the trestle so as to construction machinery, the intensity of concrete support are ensured before excavation
Meet design requirement, reasonable arrangement excavation procedure reduces the influence to foundation pit and surrounding enviroment, and corresponding ring is set up on periphery
Border monitoring point (including building, pipeline, road surface etc.)；Steel structure frame is set up in foundation pit and substation is made in casting concrete
Babinet；
4th, electric appliance will be become to be mounted in above-mentioned transformer station box, will be gone forward side by side by precast concrete cover closing transformer station box
Row water proof anti-seepage is constructed；It lifts in transformer station box and installing in place, uses specifically, electric appliance will be become using hanging device
Precast concrete cover closing transformer station box top, and water proof anti-seepage construction is carried out, as temporary enclosed measure so as to follow-up
Upkeep operation.
The construction method of Large Underground high voltage substation of the present invention is more for surrounding building and with deep chiltern
For the construction site of soil layer；Trenching construction is carried out in proposed place using machinery, diaphram wall conduct of constructing in slot
The building enclosure of foundation pit, and using MJS construction technologies in several cement mixing methods of seam crossing construction of diaphram wall, its energy
The seam crossing of diaphram wall is enough avoided percolating water phenomenon occur, that is to say, that diaphram wall is common with cement mixing method
Play the role of further foundation pit enclosure and sealing, can ensure the construction safety of follow-up foundation pit；Treat excavation of foundation pit to setting
It after counting absolute altitude, sets up steel structure frame in foundation pit and transformer station box is made in casting concrete, then the equipment such as electric appliance peace will be become
Loaded in the babinet, finally, transformer station box is closed by precast concrete cover and carries out water proof anti-seepage construction.The construction method
Water-stop curtain reinforcing is carried out by the seam crossing in diaphram wall, not only solves leakage problem, but also ensured applying for foundation pit
Work safety so that construction is smooth.
Further, in above-mentioned steps four, due to not being one-time-concreting between precast concrete cover and transformer station box
It forms, leakage problem easily occurs at the gap spliced between the two, become for this purpose, the present embodiment is closed in precast concrete cover
Before the babinet of power station, one of water expandable waterstop is arranged, then precast concrete cover is put along transformer station box top surrounding
It is placed in the top of transformer station box.Using water expandable waterstop as leak stopping hermetic seal material, huge connect can be generated
Touch pressure thoroughly prevents from leaking.
Preferably, in above-mentioned steps four, after precast concrete cover is closed in transformer station box top, by precast concrete
The face layer of cover board is cleaned out, and first brushes twice of polyurethane water-proof paint, then lays one of 4mm thickness SBS modified asphalt waterproofs volume
Material, finally, in pouring 100mm thickness pea gravel concreten protective layers on SBS modified asphalt waterproof coiled materials again.Above-mentioned SBS modified pitch
Waterproof roll is to make the pitch of modifying agent with s-B-S (SBS) thermoplastic elastomer (TPE) to do the material that impregnates and coat
Material, upper surface is coated with can crimp made by polyethylene film, fine sand, mineral piece (grain) material or the isolated materials such as aluminium foil, copper foil
Sheet waterproof roll.Compared with prior art, the present embodiment brushes waterproof by increasing on the layer of precast concrete cover face
Coating and laying waterproof roll two procedures so that the water resistance of precast concrete cover is improved, and can effectively be kept away
Exempt from the percolating water phenomenon of precast concrete cover and transformer station box seam crossing node.
In above-mentioned steps one, grooving is carried out using the combination construction mode of " grabbing milling combination "；Since hydraulic pressure grabs grabbing for scouring machine
Bucket construction efficiency in sandy soil layer is relatively low, and it is larger to the vibration of cell wall to grab bucket, and is unfavorable for the stabilization of cell wall, therefore, this
Embodiment grabs scouring machine using hydraulic pressure and slots to absolute altitude -37.500m, for the viscous soil horizon above 7. 1 sandy silt layer,
Scouring machine, which is grabbed, with hydraulic pressure directly captures the soil body, it is ensured that its crawl efficiency grabbed bucket, and for below 7. 1 sandy silt layer
Sandy soil layer, then with hydraulic pressure slotter milling to slot bottom, construction efficiency is high, and grooving precision is high, moreover, the slag charge of milling wheel cutting and
Mud is delivered to the mud pit progress desanding processing positioned at earth's surface by slush pump and grout pipe line, and the mud after screening returns again
To cutting slot section, so as to form more closed mud circulating system；As it can be seen that carry out grooving by the way of " grabbing milling combination "
Construction, can make full use of that hydraulic pressure grabs scouring machine and hydraulic pressure slotter respectively has the advantage that, the two joint construction can improve machine
Tool utilization rate reduces energy consumption consumption.The present embodiment construction method selects SG60 hydraulic pressure to grab scouring machine and BC30 hydraulic pressure slotters.
In above-mentioned steps three, the transformer station box for becoming electric appliance is accommodated as large volume concrete structural, the thickness of box baseplate
Up to 1.9m, always the side's of pouring amount is 9700m to concrete3, the spacing of upper and lower two rows of embedded bars is larger in box baseplate, therefore,
Jacking is carried out using channel steel stent between upper and lower row's embedded bar, it is ensured that upper and lower row's embedded bar spacing will not deform, and ensure
Whole structural stability；Wall box forms steel structure frame by column and crossbeam and casting concrete is made, column and horizontal stroke
Beam uses specification to be made of the channel steel of No. 6.3, and spacing is set by 1.95m in length and breadth；Water between adjacent two root posts or crossbeam
Flat stay tension rib uses 14 reinforcing bars of Φ, in length and breadth diagonal brace using 14 reinforcing bar@6000 of Φ (represent the reinforcing bar of diameter 14mm, adjacent two
The spacing of root reinforcing bar is 6000mm), above structure causes steel structure frame more stable strong, so as to improve transformer station box
Construction quality；In addition, the top surface arrangement of reinforcement reinforcing bar of four direction and the steel construction frame of transformer station box that are stretched out in diaphram wall
Frame is welded as a whole, to improve the stability of steel structure frame entirety.
More preferably, above-mentioned steps three, in the work progress of transformer station box, the heat of hydration inside large volume concrete structural
Amount is more difficult to be distributed, and surface layer heat distributes comparatively fast so that the inside and outside process phase of expanding with heat and contract with cold of large volume concrete structural
It is different, so that large volume concrete structural generates tensile stress, lead to the generation in crack, to prevent the occurrence of such,
When assembling reinforcement in the transformer station box poured, several temperature control points are set in its tunneling boring, are set in the range of each temperature control point
Several are put for monitoring the temperature sensor of the temperature change of concrete, temperature sensor is then electric with temperature monitoring system respectively
Connection, concrete structure are prior art content, and details are not described herein again；The present embodiment is provided with 13 surveys in transformer station box
Warm spot, totally 66 sensors, main temperature control index are：
1) temperature rise value of the transformer station box on the basis of molding temperature is not preferably greater than 50 DEG C；
2) difference (equivalent temperature for being free of concrete shrinkage) is not preferably greater than 25 DEG C in transformer station box；
3) rate of temperature fall of transformer station box is not preferably greater than 2.0 DEG C/d；
4) transformer station box surface is not preferably greater than 20 DEG C with atmosphere temperature-difference.
Sequence is poured by reasonable Arrangement concrete, tunneling boring sets temperature measuring point in transformer station box to be poured, and leads to
Crossing monitoring makes unit in charge of construction be taken measures in time by temperature difference control in above-mentioned temperature control indication range, is carried out in time after the completion of pouring
Maintenance measure avoids the occurrence of crack, and then effectively controls concrete quality, can not only be mixed by the above method for box baseplate
The insulated curing for coagulating soil provides scientific basis, effectively eliminates due to harmful cracks caused by temperature factor, and can basis
Temperature, the monitoring situation of the temperature difference, the evaluation for construction quality provide foundation.
Preferably, in above-mentioned steps two, the milling wheel of hydraulic pressure slotter during cutting drilling, is placed in milling head in slot
The mud of slush pump suction socket section bottom, and the mud pit of slurry transportation to ground is subjected to desanding processing through grout pipe line；This
Embodiment carries out mud desanding processing using mud cleaning system, and mud cleaning system has thick, thin two-stage desanding unit, often
Grade desanding unit is equipped with cyclone sand removing machine and vibrating screen device；It was verified that through mud cleaning system, treated that mud contains
Sand amount can be controlled in 4% or so, and treated, and mud is back to through grout pipe line in above-mentioned slot section, and underground is formed after mud hardening
Diaphragm wall；Mud quality in processing procedure may deteriorate, and need to add brand-new mud or additive is mixed, such as through above-mentioned place
Standard is still not achieved after reason, then must be discarded；It is every since the long-term placement of mud warp in mud pit can generate precipitation
A mud pit is equipped with self-circulating device, and then realizes mud self-loopa, so as to effectively reduce sediment thickness, with smoothly complete
Into construction operation.
Preferably, in above-mentioned steps three, in addition, in the construction area of the Large Underground high voltage substation, apart from foundation pit
The side of nearer above ground structure is equipped with mobile soundproof wall, and mobile soundproof wall is made of several monolithic partition walls, every partition
Wall is set there are two horizontal hanging wheel, and partition wall moves along track by horizontal hanging wheel and can make 90 degree of right-angled bend campaigns, every every
The sound control glass fiber that unit weight is light and sound insulation capabilities are strong is filled in the inside of disconnected wall, so as to improve the sound insulation of mobile soundproof wall entirety
Effect reduces interference of the noise of foundation pit construction generation to the above ground structure.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (10)
1. the construction method of Large Underground high voltage substation, step are as follows：
First, according to the practical geological condition in construction project to be built place, by the downward milling slot of earth's surface；
2nd, it constructs in the slot dug in above-mentioned steps one diaphram wall, constructs water in the seam crossing of the diaphram wall
Soil mixing pile is reinforced, the building enclosure as foundation pit；
3rd, the foundation pit is excavated to designed elevation, sets up steel structure frame in the foundation pit and power transformation is made in casting concrete
It stands babinet；
4th, electric appliance will be become to be mounted in the transformer station box, the transformer station box is closed by precast concrete cover and is gone forward side by side
Row water proof anti-seepage is constructed.
2. construction method according to claim 1, it is characterised in that：In the step 4, in the precast concrete cover
Before plate closes the transformer station box, water expandable waterstop is arranged, then by described in along transformer station box top surrounding
Precast concrete cover is positioned over the top of the transformer station box.
3. construction method according to claim 2, it is characterised in that：The precast concrete cover is closed in the power transformation
It stands behind babinet top, first brushes twice of polyurethane water-proof paint on the layer of the face of the precast concrete cover, then lay together
Modified asphalt waterproof coiled material finally, pours pea gravel concreten protective layer again on the modified asphalt waterproof coiled material.
4. construction method according to any one of claims 1 to 3, it is characterised in that：In the step 1, grabbed using hydraulic pressure
The mode that scouring machine and hydraulic pressure slotter are combined carries out grooving, to the viscous soil horizon on the construction project to be built formation top, uses
The hydraulic pressure grabs scouring machine and directly captures the soil body, to being located at the sandy soil layer below the viscous soil horizon, with the hydraulic pressure slotter
Milling is to slot bottom.
5. construction method according to any one of claims 1 to 3, it is characterised in that：In the step 3, the substation
In the box baseplate of babinet there is upper and lower two rows of embedded bars, and channel steel stent is used between upper and lower two rows of embedded bars
Carry out jacking；The side wall of the transformer station box forms steel structure frame by column and crossbeam and casting concrete is made, described
Column and crossbeam are made of channel steel, and adjacent two columns or crossbeam are connected by horizontal stay tension rib.
6. construction method according to claim 5, it is characterised in that：The top surface arrangement of reinforcement reinforcing bar that the diaphram wall stretches out
It is welded as a whole with the steel structure frame of the transformer station box.
7. construction method according to any one of claims 1 to 3, it is characterised in that：In the step 3, to be poured
In the transformer station box during assembling reinforcement, several temperature control points are set in the tunneling boring of the transformer station box, it is each described
Several are set in the range of temperature control point for monitoring the temperature sensor of concrete temperature variation.
8. construction method according to claim 4, it is characterised in that：In the step 2, the milling of the hydraulic pressure slotter
Wheel during cutting drilling, is placed in the mud of slot bottom described in the mud pumping in the hydraulic pressure slotter in the slot,
And the mud pit of the slurry transportation to ground is carried out desanding processing by the grout pipe line through the hydraulic pressure slotter, treated
The mud is back to through the grout pipe line in the slot, and the diaphram wall is formed after the mud hardening.
9. construction method according to claim 8, it is characterised in that：Self-circulating device is equipped in the mud pit.
10. construction method according to any one of claims 1 to 3, it is characterised in that：In the step 3, close to described
The side of the above ground structure of foundation pit is additionally provided with soundproof wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711481531.7A CN108252327A (en) | 2017-12-29 | 2017-12-29 | The construction method of Large Underground high voltage substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711481531.7A CN108252327A (en) | 2017-12-29 | 2017-12-29 | The construction method of Large Underground high voltage substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108252327A true CN108252327A (en) | 2018-07-06 |
Family
ID=62724684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711481531.7A Pending CN108252327A (en) | 2017-12-29 | 2017-12-29 | The construction method of Large Underground high voltage substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108252327A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453687A (en) * | 2019-07-31 | 2019-11-15 | 南京林业大学 | A kind of Metro station excavation excavates the protection structure and construction method of pipeline |
| CN115012427A (en) * | 2022-06-20 | 2022-09-06 | 广东电网有限责任公司 | Outdoor transformer substation construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561390A (en) * | 2010-12-17 | 2012-07-11 | 上海市电力公司 | Application of top-down construction method to structural construction of underground substation |
| CN203256774U (en) * | 2013-04-01 | 2013-10-30 | 成都科创佳思科技有限公司 | Underground cable trench construction structure for electric engineering |
| CN203639952U (en) * | 2013-12-16 | 2014-06-11 | 上海电力设计院有限公司 | Underground diaphragm wall joint waterproof structure of underground substation |
| CN104466869A (en) * | 2014-12-05 | 2015-03-25 | 浙江省电力设计院 | Reinforced concrete assembly type cable duct and manufacturing method |
| CN105696622A (en) * | 2016-01-18 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Prefabricated urban pipe gallery and construction method thereof |
-
2017
- 2017-12-29 CN CN201711481531.7A patent/CN108252327A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561390A (en) * | 2010-12-17 | 2012-07-11 | 上海市电力公司 | Application of top-down construction method to structural construction of underground substation |
| CN203256774U (en) * | 2013-04-01 | 2013-10-30 | 成都科创佳思科技有限公司 | Underground cable trench construction structure for electric engineering |
| CN203639952U (en) * | 2013-12-16 | 2014-06-11 | 上海电力设计院有限公司 | Underground diaphragm wall joint waterproof structure of underground substation |
| CN104466869A (en) * | 2014-12-05 | 2015-03-25 | 浙江省电力设计院 | Reinforced concrete assembly type cable duct and manufacturing method |
| CN105696622A (en) * | 2016-01-18 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Prefabricated urban pipe gallery and construction method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 彭芳乐: "《深层地下空间开发利用技术指南》", 30 April 2016, 同济大学出版社 * |
| 郑少鹏等: "《深圳市110kV草埔全地下变电站建设要点》", 《电力建设》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453687A (en) * | 2019-07-31 | 2019-11-15 | 南京林业大学 | A kind of Metro station excavation excavates the protection structure and construction method of pipeline |
| CN110453687B (en) * | 2019-07-31 | 2024-03-19 | 南京林业大学 | Protection structure of subway station foundation pit excavation pipeline and construction method |
| CN115012427A (en) * | 2022-06-20 | 2022-09-06 | 广东电网有限责任公司 | Outdoor transformer substation construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105464686B (en) | Multi-layer underground space curtain posture excavating construction method and supporting construction under existing facility | |
| CN104612162B (en) | A kind of Deep Foundation Pit of Metro Stations excavation construction method | |
| WO2020248596A1 (en) | Protection structure for preventing ground heave caused by tunnel grouting reinforcement and grouting method | |
| Croce et al. | Design of jet-grouting cut-offs | |
| CN104099943B (en) | Diaphram wall and discarded underground civil defense engineering intersection processing method | |
| CN109898520A (en) | A kind of heavy wall construction method | |
| CN102635119A (en) | Supporting method for construction of swirl well | |
| CN108612117A (en) | A kind of seabed water-retaining structure across municipal tunnel greatly and construction method | |
| CN103696416B (en) | A kind of method for processing foundation | |
| CN103015429A (en) | Long auger rotary-jet mixing steel reinforced cement-soil pile foundation pit water-resisting and supporting method | |
| CN109403332B (en) | Method for combined excavation of layered bench sections of deep foundation pit of sandy cobble thick covering layer wide shallow valley | |
| CN109594575A (en) | A kind of open caisson periphery grouting and reinforcing soil body construction method | |
| CN113931211A (en) | Fabricated foundation and foundation of ground firmware and installation method thereof | |
| CN106498957A (en) | Steel sheet pile cofferdam construction platform and integral construction method | |
| CN207003421U (en) | A kind of steel plate pilework for being seated hard rock top surface | |
| CN109406759B (en) | Assembled multifunctional geotechnical engineering test model box | |
| CN108252327A (en) | The construction method of Large Underground high voltage substation | |
| CN207176700U (en) | A kind of solid matter perfusion inner support of pile foundation ditch permanent support structure under complex environment | |
| CN203939036U (en) | A kind of steel sheet pile cofferdam structure that is applicable to river course | |
| CN205382942U (en) | Multilayer underground space curtain posture subsurface excavated construction's supporting construction under existing facility | |
| CN101886385B (en) | Construction process of long-auger jet-grouting mixing curtain pile | |
| CN111379273A (en) | Construction method of corrugated steel comprehensive pipe gallery | |
| CN114542092A (en) | Shield receiving construction method without bottom plate structure | |
| CN210141128U (en) | Test device for simulating pipe curtain underground excavation | |
| CN107023012A (en) | Multiple tracks annular concrete support Deep Foundation Pit Excavation outward transport construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |